Average
#156 of 219 schools in DE
Millsboro Middle School
Middle School · Indian River School District
302 East State Street, Millsboro, DE 19966
Enrollment
756
Student-Teacher
14.3:1
Score
5.5
Grades
6th – 8th
Enrollment
756
Student-Teacher
14.3:1
Score
5.5
Grades
6th – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Delaware schools
#156 of 219
In Millsboro
#1 of 3
public schools
In district
#11 of 15
Indian River School District
Shortlisting around Millsboro Middle School?
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Millsboro Middle School
Middle School in Millsboro · grades 6th – 8th. Start here, then compare fit against nearby and district options.
East Millsboro Elementary School
0.6 mi away. Use as a geographic alternative in the same move search.
Lighthouse Christian School
3.5 mi away. Use as a geographic alternative in the same move search.
About Millsboro Middle School
Millsboro Middle School is a public middle school in Millsboro, DE, part of Indian River School District. Millsboro Middle School serves approximately 756 students, and covers grades 6th-8th, and has a 14.3:1 student-teacher ratio. Millsboro Middle School has a current MySchoolScout rating of 5.5 out of 10 and ranks #156 of 219 schools in DE.
Structured state assessment records for Millsboro Middle School show 37% math proficiency (multi-year average, 2009-2025) and 53% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 5.5 · Average
- District avg 6.7
- DE avg 5.8
What Parents Should Know
33% of students at Millsboro Middle School were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Millsboro Middle School — Students at Millsboro Middle School score 30% proficient, which is below what's typical for similar communities (expected: 33%).
Test Scores DE DESSA (2024-25)
Based on 90 test records from DE state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.2/10.
How Millsboro Middle School Compares
See how Millsboro Middle School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Location
302 East State Street, Millsboro, DE 19966
Nearby Alternatives
Families considering Millsboro Middle School may also want to explore other middle schools in the area. Selbyville Middle School (rated 7.7/10, 9.8 miles away, in nearby Selbyville), which scores notably higher. Another option is Mariner Middle School (rated 7.0/10, 12.1 miles away, in nearby Milton), which scores notably higher. Additionally, Georgetown Middle School (rated 6.8/10, 8.5 miles away, in nearby Georgetown), which scores notably higher. For more schools in Millsboro, see our Millsboro schools guide .
Nearby Schools
20 within 12.6 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 19966 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$75,436
Median Home Value
$282,100
Median Rent
$1,293/mo
Population
34,892
College Educated
27.6%
Homeownership
82.5%
Avg Commute
29 min
Poverty Rate
12%
Median Age
53
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Stanton Middle School Wilmington, DE | 5.7 |
| Clayton Intermediate School Clayton, DE | 5.1 |
| Moore (John Bassett) School Smyrna, DE | 6.0 |
| Redding (Louis L.) Middle School Middletown, DE | 5.0 |
| Smyrna Middle School Smyrna, DE | 5.0 |
| Bedford (Gunning) Middle School New Castle, DE | 4.9 |
Frequently Asked Questions
Common questions about Millsboro Middle School
What grades does Millsboro Middle School serve?
Millsboro Middle School serves students in grades 6th through 8th.
How many students attend Millsboro Middle School?
Millsboro Middle School has an enrollment of approximately 756 students.
What is the student-teacher ratio at Millsboro Middle School?
The student-teacher ratio at Millsboro Middle School is 14.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Millsboro Middle School rank in DE?
Millsboro Middle School ranks #156 of 219 schools in DE.
What is Millsboro Middle School's MySchoolScout rating?
Millsboro Middle School has a current MySchoolScout rating of 5.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Millsboro Middle School?
Based on loaded state assessment records, Millsboro Middle School has 37% math proficiency (multi-year average, 2009-2025) and 53% reading/ELA proficiency (multi-year average, 2009-2025).
Is Millsboro Middle School a charter school?
No, Millsboro Middle School is not a charter school. It is a traditional public school operated by the local school district.
Is Millsboro Middle School a Title I school?
No, Millsboro Middle School is not currently a Title I school.
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Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 6th – 8th
- Enrollment
- 756
- Student-Teacher Ratio
- 14.3:1
- Teachers (FTE)
- 53
- Type
- regular
- Setting
- Distant Town
- County
- Sussex County
- Chronic Absenteeism (SY 2022-23)
- 33.1%
- Phone
- (302) 934-3200
Resources & Links
District
Indian River School District- District Enrollment
- 10,786
- Schools in District
- 16
- Per-Pupil Spending
- $19,367
- District Rank
- #11 of 15
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